morluto
c324d31b45
Remove shared-module mocks for input reads, heap statistics, and tarball streaming. Exercise actual file changes and real V8 heap admission in fresh CLI processes; keep only selected-descriptor syscall fault injection for the pathless EIO case. Reproduced the four hosted source failures with a preloaded module graph and found the same flaw in the adjacent tarball test. The preloaded control now passes 17 cases; 32 focused tests, all 1,739 service tests (2 skips), and check:ci pass. Snapshot, cleanup, identity, and error projection coverage is retained.
42 lines
1.4 KiB
JavaScript
42 lines
1.4 KiB
JavaScript
import { promises as fs } from "node:fs";
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import { syncBuiltinESMExports } from "node:module";
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const path = process.env.REA_TEST_EXPORT_INPUT;
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const marker = process.env.REA_TEST_EXPORT_READ_MARKER;
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const action = process.env.REA_TEST_EXPORT_READ_ACTION;
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if (!path || !marker || !["append", "record", "fail-copy"].includes(action))
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throw new Error("Expected an explicit export input, read marker and action");
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// Instrument only the selected real descriptor in this disposable CLI process.
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// Reads and metadata checks remain the production filesystem operations.
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const open = fs.open;
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fs.open = async (...args) => {
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const handle = await open(...args);
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if (args[0] !== path) return handle;
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const read = handle.read.bind(handle);
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let recorded = false;
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let hashed = false;
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handle.read = async (...readArgs) => {
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if (action === "fail-copy" && hashed) {
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await fs.writeFile(marker, "copy");
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throw Object.assign(new Error("controlled pathless descriptor failure"), {
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code: "EIO",
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syscall: "read",
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});
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}
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const result = await read(...readArgs);
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if (action === "fail-copy") {
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hashed = result.bytesRead === 0;
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return result;
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}
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if (!recorded) {
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recorded = true;
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await fs.writeFile(marker, "read");
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if (action === "append") await fs.appendFile(path, " ");
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}
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return result;
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};
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return handle;
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};
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syncBuiltinESMExports();
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